A cross section of soil, from surface to bedrock

The layer below the O horizon in an idealized profile

Leaching and the rate of movement of water would be inhibitied in a soil classified as ________.

Decomposers are most likely found in the ________.

Excavating a giant hole in the landscape to remove widely spread mineral deposits

Sifting through sand and silt in riverbeds for minerals using flowing water

The General Mining Act of 1872 ________.

The ____________ is an example of an active, continent-continent collision.

Which one of the following most accurately describes the volcanoes of the Hawaiian Islands?

New oceanic crust and lithosphere are formed at ____________.

The Aleutian Islands (off the coast of Alaska) occur at a ____________.

In which area would weathering by frost wedging probably be most effective?

Assume that water filling a crack in a rock undergoes cycles of freezing and melting. Which of the following statement is true?

Which one of the following statements concerning mechanical weathering is not true?

What two factors speed up rates of chemical reaction and weathering in rocks and soils?

What room is the test in tomorrow?

Soil's ability to absorb and release charged ions that hold nutrients is referred to as: